Evaluating Permutations and Factorials

This video tutorial demonstrates how to use the Desmos scientific calculator to evaluate factorials, permutations, and combinations. It provides step-by-step instructions for calculating 8 factorial, 8 permute 5, and 8 choose 5 using both the Desmos interface and keyboard shortcuts. The tutorial aims to help users efficiently perform these calculations with clear guidance on using the calculator's functions menu and keyboard inputs.

What is the primary tool used in this lesson to evaluate factorials, permutations, and combinations?

• Graphing paper

• Handheld calculator

• Excel spreadsheet

• Desmos scientific calculator

How do you calculate 8 factorial using the Desmos calculator?

• Type 8 and press the division sign

• Type 8 and press the plus sign

• Enter 8 and click the factorial button

• Enter 8 and click the square root button

What is the result of 8 factorial?

• 8,000

• 5,040

• 40,320

• 32,000

Which function is used to calculate permutations on the Desmos calculator?

• Factorial

• nCr

• Square root

• nPr

What is the result of 8 permute 5?

• 56

• 6,720

• 1,680

• 5,040

How do you input a permutation calculation using the keyboard?

• nCr(8,5)

• nPr(8,5)

• 8+5

• 8!5

Which function is used to calculate combinations on the Desmos calculator?

• nCr

• nPr

• Factorial

• Addition

What is the result of 8 choose 5?

• 56

• 5,040

• 120

• 720